Results 21 to 30 of about 15,218,783 (286)

Wavelet Packet Singular Entropy-Based Method for Damage Identification in Curved Continuous Girder Bridges under Seismic Excitations

open access: yesSensors, 2019
Curved continuous girder bridges (CCGBs) have been widely adopted in the civil engineering field in recent decades for complex interchanges and city viaducts.
Dayang Li   +3 more
doaj   +1 more source

Seismic Damage Behaviour of Aeolian Sand Concrete Columns with I-Shaped Structural Steel [PDF]

open access: yesArchives of Civil Engineering, 2020
To promote the application of aeolian sand resources for steel-concrete composite structures, an aeolian sand reinforced concrete column with I-shaped structural steel is proposed in this study. Four specimens are designed and manufactured with different
Yaohong Wang   +6 more
doaj   +1 more source

Seismic Fragility Assessment of RC Columns Exposed to the Freeze-Thaw Damage

open access: yesBuildings, 2023
Freeze–thaw damage is one of the primary causes deteriorating the seismic resistance of reinforced concrete (RC) structures. This paper proposed a freeze–thaw damage deterioration model for C30 concrete, and it can be employed to study the time-varying ...
Fengkun Cui   +5 more
doaj   +1 more source

Seismic soil-structure interaction for pile supported systems [PDF]

open access: yes, 2009
Civil engineering structures involve structural elements with direct contact with ground. When the external actions, such as earthquakes, act on these systems, neither the structural displacements nor the ground displacements, are independent of each ...
Di Laora, Raffaele
core   +1 more source

Multi-Source Feature-Fusion Method for the Seismic Data of Cultural Relics Based on Deep Learning

open access: yesSensors
The museum system is exposed to a high risk of seismic hazards. However, it is difficult to carry out seismic hazard prevention to protect cultural relics in collections due to the lack of real data and diverse types of seismic hazards.
Lin He   +4 more
doaj   +1 more source

A first approach to the estimation of seismic damage in Guatemala City: a seismic exposure model

open access: yes, 2022
Abstract This study presents the analysis of the methodology of a seismic exposure model in Guatemala City. In the last years, progress in the investigation of regional seismic hazards has revealed the need to study the vulnerability of the buildings in Central America.
Luis Diego Dávila Migoya   +2 more
openaire   +1 more source

SEISMIC DAMAGE ASSESSMENT OF LIFELINES BASED ON GEOSPATIAL ANALYSIS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
The main purpose of this study is to develop a Geospatial Information System (GIS) model with the ability to assess the seismic damage to lifelines for two well-known hazards, including ground shaking and ground failure simultaneously.
M. Eskandari, S. Goodarzi, M. A. Nekooie
doaj   +1 more source

Seismic performance assessment of subway station structures considering fuzzy probability of damage states

open access: yesYantu gongcheng xuebao, 2022
Quantification of structural damage states in the fragility analysis and seismic performance evaluation of underground structures usually adopts the deterministic threshold values, which is a limitation in the framework of performance-based seismic ...
ZHONG Zi-lan , SHI Yue-bo , LI Jin-qiang , ZHAO Mi , DU Xiu-li
doaj   +1 more source

Regional Seismic Wavefield Propagation [PDF]

open access: yes, 2004
Through the examination of local and regional seismic waveform data the crust and upper mantle of southern California are investigated. Using local and regional seismic phases such as Pn, Sn, PL, and surface waves, seismic wave velocities of interesting
Savage, Brian Kirk
core   +1 more source

Analysis of Tunnel Lining Damage Characteristics Under the Combined Actions of Fault Dislocation and Seismic Action

open access: yesApplied Sciences
Tunnels crossing active faults frequently experience simultaneous exposure to fault dislocation and seismic action during operation. To study the damage behavior of tunnels under the combined effects of fault dislocation and seismic action, a three ...
Jiaxuan Du   +4 more
doaj   +1 more source

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